looking for manhwa/webtoon (bl)

i forgot what the story was about lol but uke has grey hair(?) who works at a cafe. he’s half human half something else. he always notice this one regular customer.. this customer aka the seme is hot and wears glasses and would do work at the cafe.

i remember the uke’s loved ones are super protective of him and keeps an eye on him because of what he is.

;-; help